/*
 * Copyright (c) 2007, Nubo Technologies
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
 *
 *    * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
 *    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
 *    * Neither the name of the Nubo Technologies nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package com.nubotech.gwt.oss.browser.client.ui;

import com.google.gwt.user.client.DOM;
import com.google.gwt.user.client.Element;
import com.google.gwt.user.client.Event;
import com.google.gwt.user.client.ui.ClickListener;
import com.google.gwt.user.client.ui.ClickListenerCollection;
import com.google.gwt.user.client.ui.SourcesClickEvents;
import com.google.gwt.user.client.ui.Widget;

/**
 *
 * @author jonnakkerud
 */
public class ClickableWidget extends Widget implements SourcesClickEvents {
    private ClickListenerCollection clickListeners;
    
    /** Creates a new instance of ClickableWidget */
    public ClickableWidget(Element e) {
        setElement(e);
        sinkEvents(Event.ONCLICK);
    }
    
    public void addClickListener(ClickListener listener) {
        if (clickListeners == null) {
            clickListeners = new ClickListenerCollection();
        }
        clickListeners.add(listener);
    }
    
    public void removeClickListener(ClickListener listener) {
        if (clickListeners == null) {
            clickListeners = new ClickListenerCollection();
        }
        clickListeners.remove(listener);        
    }
    
    public void onBrowserEvent(Event event) {
        if (DOM.eventGetType(event) == Event.ONCLICK) {
            if (clickListeners != null) {
                clickListeners.fireClick(this);
            }
            DOM.eventPreventDefault(event);
        }
    }
    
}
